CN217458992U - Plant-microorganism coupling water purifying device capable of automatically controlling oxygen - Google Patents

Abstract

The utility model relates to a plant-microorganism coupling purifier that can automatic accuse oxygen, including photosensitive hydraulic stem, purification groove, reinforce dephosphorization packing layer, nylon filter screen, humus layer and plant-microorganism coupling body, the plant-microorganism coupling body is wrapped up in the nylon wire at plant seedling phase with high-efficient phosphorus fungus class cavity spheroid by emergent aquatic plant, submerged plant and is twined and constitute, high-efficient phosphorus fungus class cavity spheroid is made in the well hollow sphere by the granule mud parcel that high-efficient phosphorus fungus is the dominant flora, through the control of light-operated circuit system photosensitive hydraulic stem carries out concertina movement along with the strong and weak change of light. The utility model discloses use the mode of plant-microorganism organic coupling, with high-efficient phosphorus-accumulating bacteria and intensive type dephosphorization packing layer reinforcing to the purification of phosphorus in the water, form the complex body of getting rid of phosphorus pollution, also possess better dephosphorization effect when possessing the ecology.

Description

Plant-microorganism coupling water purifying device capable of automatically controlling oxygen

Technical Field

The utility model relates to the field of sewage treatment, in particular to a plant-microorganism coupling water purifying device capable of automatically controlling oxygen.

Background

Nitrogen and phosphorus are main limiting factors for water eutrophication, and the control of the nitrogen and phosphorus concentration in the water can effectively control the lake water eutrophication. The whole lake experimental cases of the countries such as the United states, Canada and the like are researched and analyzed, and the control of phosphorus is found to be the key point for reducing the eutrophication of the fresh water. The publication of China ecological environment conditions in 1989-2020 also indicates that the main pollution index of eutrophication of lake and reservoir water is TP.

The phosphorus-accumulating bacteria are widely used for biological phosphorus removal, the phosphorus-accumulating bacteria phosphorus removal process achieves phosphorus removal effect under the condition of alternate anaerobic and aerobic operation, the aerobic and anaerobic environments need to be controlled, the key point of phosphorus removal is the arrangement of an anaerobic zone, and the phosphorus-accumulating bacteria absorb low-molecular substrates and rapidly assimilate and store fermentation products under the anaerobic condition, namely the anaerobic zone provides competitive advantage for the phosphorus-accumulating bacteria. Under aerobic conditions, the activity of the phosphorus-accumulating bacteria is recovered, the phosphorus amount which is more than that required by growth is stored in a phosphorus-accumulating mode, energy is generated through the oxidative metabolism of PHB and is used for the absorption of phosphorus and the synthesis of phosphorus accumulation, the energy is captured and stored in a polyphosphoric acid high-energy bond mode, and phosphate is removed from water. The process is well applied to sewage treatment plants, but in natural water, because an oxygen condition control system is complex, the implementation cost is high, the thallus is easy to disperse in water, and the phosphorus-accumulating bacteria have no good effect on phosphorus removal. Meanwhile, the effect of removing phosphorus from the lake water body only by using microorganisms is not good enough.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned technical problem, provide a plant-microorganism coupling purifier that can automatic accuse oxygen, set up simultaneously and strengthen the type dephosphorization filler, form compound enhancement dephosphorization system, easy operation, artificial intervention is few, easily realizes polluting the dephosphorization of lake reservoir.

In order to realize the above purpose, the utility model provides a can automatic oxygen control plant-microorganism coupling purifier, including setting up photosensitive hydraulic stem at the bottom of the shallow water district of nearly bank, setting up be in purification groove on photosensitive hydraulic stem upper portion, lay and be in the reinforcing dephosphorization packing layer, the setting of purifying inslot are in nylon filter screen on the reinforcing dephosphorization packing layer, lay humus layer on the nylon filter screen and set up and be in plant-microorganism coupling body on the humus layer, plant-microorganism coupling body is wrapped up in the winding with the nylon wire by high-efficient phosphorus-accumulating fungus class cavity spheroid at plant seedling phase by emergent aquatic plants, submerged plant, high-efficient phosphorus-accumulating fungus class cavity spheroid is made in the hollow spheroid by the granule mud parcel that high-efficient phosphorus-accumulating fungus is the dominant flora.

The plant-microorganism coupling water purifying device further comprises a solar cell panel and a light-operated circuit system which are arranged on the bank, a first conducting wire is arranged between the solar cell panel and the light-operated circuit system, a second conducting wire is arranged between the light-operated circuit system and the photosensitive hydraulic rod, and the light-operated circuit system controls the photosensitive hydraulic rod to move telescopically along with the change of the light intensity.

Preferably, the telescopic length of the photosensitive hydraulic rod is 30 cm; the height of the purification tank is 30cm, and the purification tank can move in the vertical direction along with the expansion and contraction of the photosensitive hydraulic rod.

Preferably, the septic tank is made of brick, non-sand concrete, glass fiber reinforced plastic or carbon steel.

Preferably, the thickness of the reinforced phosphorus removal filler layer is 20 cm.

Preferably, the mesh number of the nylon filter screen is 100 meshes.

Based on the technical scheme, the utility model has the advantages that:

1) by using a plant-microorganism organic coupling mode, the purification of phosphorus in a water body is enhanced by using efficient phosphorus-accumulating bacteria and an enhanced phosphorus removal filler layer to form a complex for removing phosphorus pollution, and the ecological phosphorus removal filler has a better phosphorus removal effect. Meanwhile, the planted emergent and submerged plants also have certain ornamental value.

2) The utility model discloses well plant-microorganism coupling purifier has set up photosensitive hydraulic stem, thereby makes the automatic rising of cell body control microorganism aerobic environment through photosensitive induction, need not artifical regulatory parameter, has reduced human cost and material cost, has reduced artificial intervention.

3) The device has a certain effect on removing nitrogen, organic pollution and the like in the water body while enhancing the dephosphorization effect.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

FIG. 1 is a schematic view of a plant-microorganism coupled water purification device with an extended photosensitive hydraulic rod;

fig. 2 is a schematic diagram of a plant-microorganism coupled water purifying device with a contracted photosensitive hydraulic rod.

Detailed Description

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

The utility model provides a plant-microorganism coupling purifier that can automatic accuse oxygen, the device comprises photosensitive hydraulic stem, purification groove, intensive dephosphorization packing layer, nylon filter screen, humus layer, plant-microorganism coupling body etc.. As shown in fig. 1 to 2, a preferred embodiment of the present invention is shown.

As shown in fig. 1 and fig. 2, the plant-microorganism coupling water purifying device comprises a photosensitive hydraulic rod 2 arranged at the bottom 1 of a near-shore shallow water area, a purifying tank 3 arranged on the upper part of the photosensitive hydraulic rod 2, an enhanced phosphorus removal filler layer 4 laid in the purifying tank 3, a nylon filter screen 5 arranged on the enhanced phosphorus removal filler layer 4, a humus layer 6 laid on the nylon filter screen 5, and a plant-microorganism coupling body arranged on the humus layer 6, wherein the plant-microorganism coupling body is formed by wrapping and winding emergent aquatic plants 10 and submerged plants 9 and efficient phosphorus accumulating fungus hollow spheres 7 integrally with nylon screens 8 in a plant seedling stage, and the efficient phosphorus accumulating fungus hollow spheres 7 are made by wrapping granular sludge with efficient phosphorus accumulating fungi as dominant flora in medium hollow spheres.

Further, the plant-microorganism coupling water purification device further comprises a solar cell panel and a light-operated circuit system which are arranged on the bank, a first conducting wire is arranged between the solar cell panel and the light-operated circuit system, a second conducting wire is arranged between the light-operated circuit system and the photosensitive hydraulic rod 2, and the light-operated circuit system controls the photosensitive hydraulic rod 2 to move telescopically along with the change of the light intensity.

The device is arranged in a shallow water area 1 near the bank of lakes and reservoirs. Photosensitive hydraulic stem 2 is located the shoreside shallow water zone 1 after leveling, and telescopic length is 30cm, can stretch out and draw back along with the external light condition. Preferably, the height of the purge tank 3 is 30cm, and the purge tank 3 can move in the vertical direction with the expansion and contraction of the photosensitive hydraulic rod 2.

Preferably, the septic tank 3 is made of brick, non-sand concrete, glass reinforced plastic or carbon steel. The reinforced phosphorus removal packing layer 4 is 20cm thick and is formed by mixing volcanic rock, steel slag, zeolite and oyster shell according to a certain mass ratio, and the mass ratio is volcanic rock: steel slag: zeolite: 2-3 of oyster shell: 1-2: 3-4: 1 to 2. The particle size of the volcanic rock is controlled to be 6-10 mm, the particle size of the steel slag is selected from 6-10 mm steel slag, the particle size of the zeolite is controlled to be 6-10 mm, and the particle size of oyster shells is controlled to be 6-10 mm after ball milling.

A nylon filter screen 5 with 100 meshes is arranged above the enhanced phosphorus removal packing layer 4, a humus layer 6 is arranged above the nylon filter screen 5, the thickness is 5cm, and nutrition is provided for emergent aquatic plants and submerged plants. Preferably, the mesh number of the nylon filter screen 5 is 100 meshes.

Above the humus layer 6 is a plant-microorganism coupled body composed of emergent aquatic plant 10, submerged plant 9, and high-efficiency phosphorus-accumulating fungi hollow sphere 7. The emergent aquatic plant 10 can be plant species with developed root system and strong water purification capability such as rhizoma Acori Calami, rhizoma Phragmitis, and rhizoma Iridis, and the submerged plant 9 can be algae with strong water purification capability such as small Pseudobulbus Cremastrae Seu pleiones, herba Aleuritis Fortunei, and Potamogeton crispus. Emergent aquatic plants 10 and submerged plants 9 are wrapped and wound together with the high-efficiency phosphorus-accumulating fungi hollow spheres 7 by the nylon net 8 to form a whole body for planting at the plant seedling stage.

The hollow sphere 7 of the high-efficiency phosphorus-accumulating bacteria is formed by wrapping granular sludge which takes the high-efficiency phosphorus-accumulating bacteria as dominant flora in a hollow sphere. The high-efficiency phosphorus-accumulating bacteria granular sludge is prepared by granulating and culturing mature activated sludge from a sewage treatment plant by an SBR reactor until the grain size is about 2-2.4 mm. The quasi-hollow sphere is a honeycomb structure with pores on the surface, the pore diameter of the pores is 1-1.5 mm, and the pores can allow air to enter and allow nylon ropes to pass through so as to be convenient for fixing. The sphere wall thickness of the quasi-hollow sphere is 2-3 mm, and the particle size is 16-18 mm.

The material characteristics selected for the filler are as follows:

the volcanic rock is a porous stone with a specific surface area of 120m ² More than g, and the porosity reaches 40 percent. The volcanic rock contains dozens of mineral substances and trace elements such as sodium, magnesium, aluminum and the like, and the substances can be used as active substances to perform ion exchange and chemical reaction with phosphate radicals, have strong adsorption capacity on pollutants and have beneficial effects on improving water quality.

The steel slag belongs to an alkaline base material, free calcium and magnesium oxides contained in the steel slag can be converted into hydroxide through reaction with water or moisture, the hydroxide can be neutralized with phosphate radicals, phosphorus removal is effectively realized, the steel slag has the physical characteristics of porosity, excellent adsorption effect and good reduction characteristic, pollutants in sewage can be effectively removed, and the phosphorus adsorption efficiency is high-quality and long-acting.

The zeolite has the advantages of good permeability, large specific surface area, rich sources and low price, and has the performances of adsorptivity, ion exchange property, catalysis, thermal stability, acid and alkali resistance and the like. The capability of denitrification and ammonia removal is strong, and the capability of removing phosphorus is due to strong adsorption capability. Has adsorption effect on lead, zinc, cadmium, nickel, copper, cesium, strontium, etc. in sewage. The performance of removing pollutants is stable and reliable, and the device has the function of comprehensively treating pollutants in water.

Oyster shell has abundant natural hierarchical porous structure, and the main part is the prismatic layer, and the pore size distribution is from 1 ~ 10 mu m inequality, makes its own just have lasting effectual adsorption efficiency, exchange capacity and catalytic decomposition ability to further improve the efficiency of removing phosphorus.

Preferably, the preparation method of the quasi-hollow sphere comprises the following steps:

(a) grinding and homogenizing, drying the dried sludge with the water content of 20-30%, magnetic siderite and bentonite to constant weight, preparing the dried sludge, the magnetic siderite and the bentonite into fine powder by using a ball mill, and respectively sieving the fine powder by using a 100-mesh sieve for later use.

(b) Mixing and granulating, namely weighing 50-70% by mass of dried sludge, 10-15% by mass of magnetic siderite and 10-30% by mass of bentonite, uniformly mixing, adding 75% by mass of ethanol as a solvent, 0.55% by mass of a perfluorosulfonic acid resin solution as a binder and 40mmol/L of cetyltrimethylammonium bromide (CTAB) as a pore-forming agent, wherein the volume ratio of the solvent to the binder to the pore-forming agent is (6-8) to (1-2) to (0.5-1), and agglomerating the raw materials into a semi-honeycomb green blank with the wall thickness of 2-3 mm and the particle size of 10-12 mm by a casting method.

(c) The raw material is dried, a certain mass of raw material balls which are cast into hollow half-honeycomb shapes are weighed and placed into an electric heating air blast drying box, and the raw material balls are dried for 6 hours at 105 ℃ and are sealed for storage for later use.

(d) And (3) raw material sintering, namely performing gradient heating calcination on the half-honeycomb-shaped blank, maintaining for 6 hours after the half-honeycomb-shaped blank reaches the set sintering temperature of 850 ℃, and then stopping heating and cooling.

(e) Cooling the clinker, cooling the clinker to about 500 ℃ in a furnace after heating, taking out the sintered honeycomb body blank and cooling the honeycomb body blank to room temperature.

Further, preferably, the preparation step of the granular sludge comprises:

culturing granular sludge by using an SBR reactor, automatically controlling the operation of the SBR reactor by using a time program controller, and operating the SBR reactor at room temperature; inoculating sludge, taking mature activated sludge from a sewage treatment plant, wherein the average particle size is 75 mu m, the SVI of the sludge is 35-70 mL/g, separating two strains of Bacillus brevis sp.and Pseudomonas sp.with the phosphorus removal rate of more than 90%, and mixing the two strains according to the quantitative ratio of about 1:1 after pure culture to prepare the high-efficiency polyphosphate bacterial agent.

Adding a high-efficiency phosphorus-accumulating bacterium agent into a reactor at the initial stage of granular sludge culture, wherein the sludge culture influent adopts river water for treating a river channel: COD _Cr 200～350mg/L、PO ₄ ^3- -P 10～17mg/L、NH ₄ ⁺ 50-85 mg/L of-N, pH 7.5-7.8, and 10mg/L of Ca ²⁺ (ii) a The anaerobic and anoxic processes are realized by a stirrer with the rotating speed of 300 r.min ^-1 The aerobic process is realized by aeration from the bottom by an air pump.

Adopting A/O/A mode, the reaction period is 8h, the reactor is operated for 3 periods every day, the water discharge ratio of each period is 50%, and the DO value of the aerobic section is controlled to be 5.0 mg.L ^-1 About, the anoxic zone is less than 5.0 mg.L ^-1 The anaerobic section is less than 0.25 mg.L ^-1 The running times of the different stages are respectively: feeding water for 5min, anaerobic treatment for 180min, aerobic treatment for 180min, anoxic treatment for 90min, settling for 20min, and discharging water for 5 min.

After 24 days of culture, the granular sludge is gradually matured, and the grain size of the matured aerobic granular sludge is 2-2.4 mm.

The utility model discloses well plant-microorganism coupling purifier is when purifying, and the non-point source pollution gets into the lake body after purifier at first flows through. When no light is emitted at night, the photosensitive hydraulic rod automatically contracts, the purification tank is lowered to a position 32cm below the normal water level A under the action of the hydraulic rod, the emergent aquatic plant root system and the submerged plant perform respiration, oxygen is consumed, meanwhile, the closed environment of the hollow sphere-like body enables the inside high-efficiency phosphorus-accumulating bacteria to be in an anaerobic condition, the high-efficiency phosphorus-accumulating bacteria firstly release part of phosphorus under the anaerobic condition, and meanwhile, ATP is synthesized to absorb organic matters in sewage and is accumulated in the body in a PHB mode. The quasi-hollow sphere provides a better living environment for the phosphorus-accumulating bacteria, and prevents the bacteria from being dispersed by water flow.

When the plant-microorganism automatic oxygen control coupling purification tank is illuminated in the daytime, the photosensitive hydraulic rod in the plant-microorganism automatic oxygen control coupling purification tank automatically extends, the purification tank is lifted to a position 2cm below the normal water level A under the action of the hydraulic rod, at the moment, the high-efficiency phosphorus-accumulating bacteria hollow sphere is positioned at a position just immersed by a water body and is in an aerobic environment, under the aerobic condition, the phosphorus-accumulating bacteria metabolize a large amount of organic matters, and simultaneously, the excessive phosphorus in the water is absorbed and accumulated in the body, so that the purpose of fixing the phosphorus is achieved. Meanwhile, emergent aquatic plants and submerged plants have respiration, and the metabolism of pollutants is further promoted.

When the plant-microorganism coupling body plays a role, active substances in the reinforced phosphorus removal packing layer below the plant-microorganism coupling body perform ion exchange and chemical reaction with phosphate radicals to perform adsorption, exchange capacity and catalytic decomposition on pollutants, and nitrogen, COD and other pollutants are well purified while the reinforced phosphorus removal is performed. Meanwhile, a biological biofilm is formed on the surface of the filler, so that the decomposition and conversion of pollutants are further enhanced.

The utility model discloses well plant-microorganism coupling purifier uses the mode of plant-microorganism organic coupling, gathers phosphorus fungus and intensive type dephosphorization packing layer reinforcing with the high efficiency and to the purification of phosphorus in the water, forms the complex body of getting rid of phosphorus pollution, also possesses better dephosphorization effect when possessing the ecology. Meanwhile, the planted emergent and submerged plants also have certain ornamental value.

The utility model discloses well plant-microorganism coupling purifier has set up photosensitive hydraulic stem, thereby makes the automatic rising of cell body control microorganism aerobic environment through photosensitive induction, need not artifical regulatory parameter, has reduced human cost and material cost, has reduced artificial intervention. The device has a certain effect on removing nitrogen, organic pollution and the like in the water body while enhancing the dephosphorization effect.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims (5)

1. A plant-microorganism coupling purifier that can automatic accuse oxygen which characterized in that: the device comprises a photosensitive hydraulic rod (2) arranged at the bottom (1) of a near-shore shallow water area, a purification tank (3) arranged at the upper part of the photosensitive hydraulic rod (2), a reinforced phosphorus removal packing layer (4) laid in the purification tank (3), a nylon filter screen (5) arranged on the reinforced phosphorus removal packing layer (4), a humus layer (6) laid on the nylon filter screen (5) and a plant-microorganism coupling body arranged on the humus layer (6), wherein the plant-microorganism coupling body is formed by wrapping and winding emergent aquatic plants (10) and submerged plants (9) with a nylon net (8) integrally at a plant seedling stage together with a high-efficiency phosphorus-accumulating fungus hollow sphere (7), and the high-efficiency phosphorus-accumulating fungus hollow sphere (7) is made by wrapping granular sludge with high-efficiency phosphorus-accumulating bacteria as a dominant flora in a quasi-hollow sphere;

the plant-microorganism coupling water purifying device further comprises a solar cell panel and a light-operated circuit system which are arranged on the bank, a first conducting wire is arranged between the solar cell panel and the light-operated circuit system, a second conducting wire is arranged between the light-operated circuit system and the photosensitive hydraulic rod (2), and the light-operated circuit system controls the photosensitive hydraulic rod (2) to move telescopically along with the change of the light intensity.

2. The plant-microorganism coupled water purifying device according to claim 1, wherein: the telescopic length of the photosensitive hydraulic rod (2) is 30 cm; the height of the purifying tank (3) is 30cm, and the purifying tank (3) can move vertically and reversely along with the extension and retraction of the photosensitive hydraulic rod (2).

3. The plant-microorganism coupled water purifying device according to claim 1, wherein: the purifying tank (3) is made of brick, sand-free concrete, glass fiber reinforced plastic or carbon steel.

4. The plant-microorganism coupled water purifying device according to claim 1, wherein: the thickness of the reinforced phosphorus removal filler layer (4) is 20 cm.

5. The plant-microorganism coupled water purifying device according to claim 1, wherein: the mesh number of the nylon filter screen (5) is 100 meshes.

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